added repo link to func store. will open repo page on new window or tab

Signed-off-by: Ken Fukuyama <kenfdev@gmail.com>

gateway/assets/templates/funcstore.html

@@ -19,6 +19,7 @@
                 <h3>{{ func.title }}</h3>
                 <p>{{ func.description }}</p>
             </div>
+            <md-icon ng-if="func.repo_url" class="link md-secondary" ng-click="$ctrl.openRepo(func.repo_url)" aria-label="repo-link" md-svg-src="img/icons/ic_link_black_24px.svg"></md-icon>
             <md-divider md-inset ng-if="!$last"></md-divider>
         </md-list-item>
     </md-list>